An unexpected reaction between 6,7-dimethoxy-2H-1,3-benzothiazine and dimethyl acetylenedicarboxylate

Lajos Fodor, Gábor Bernáth, Pál Sohár, Diether Gröschl, Herbert Meier

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

6,7-Dimethoxy-2H-1,3-benzothiazine reacted with dimethyl acetylenedicarboxylate in aqueous methanol to give heterocycles with unexpected structures. A mechanism is proposed for the reaction.

Original languageEnglish
Pages (from-to)231-234
Number of pages4
JournalMonatshefte fur Chemie
Volume137
Issue number2
DOIs
Publication statusPublished - Feb 1 2006

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Keywords

  • 5,13-Dithiaxylopinine
  • Benzothiopyrane
  • Dimethyl acetylenedicarboxylate cycloadditions
  • Reaction mechanism
  • S,N-Heterocycles

ASJC Scopus subject areas

  • Chemistry(all)

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